Former Owner
- Alonso Mendez de Parada1
- Alpha Loretta Owens1
- Alpirsbach Abbey1
- Alvise Bochini1
- Amelia Daubeney1
- American Philosophical Society1
- American Type Founders Company. Typographic Library and Museum1
- Amīr Bahādur Jank ʻAẓim Allāh Khān1
- Ananda Coomaraswamy1
- Anchin Abbey1
- Andrea Matteo Acquaviva1
- Andrea S.1
- Andrea Tessier1
- Andreas Justus Cennis1
- Andreas Wunder1
- Andrew Fountaine1
- André Le Mercier1
- André Rooryck1
- André de Coppet1
- Andrés Ordoñez1